Abstract: This collection includes data from three national cross-section surveys and from a sample of young families in two major cities. The data were collected in an effort to construct and apply survey indicators of economic well-being and motivation, and to link changes in them to trends in the American economy. The work aims at measuring economic welfare, its dimensions, its situational (''objective'') and psychological (''subjective'') bases, and its consequences for economic behavior and system orientations. Part I (family N=574, individual N=1,148) is comprised of data collected in April-May 1971, from a relatively homogeneous sample of young families in Detroit and Baltimore, Part II (N=1,297) is from the Survey Research Center's Omnibus Survey, Spring 1972, Part III (N=1,435) from the Omnibus Survey, Fall 1973, and Part IV (N=1,519) from the Omnibus Survey, Fall 1974. The surveys explore such matters as respondents' expectations concerning income changes, respondents' opinions about the equity of their income in comparison with that of others, and respondents' beliefs about which factors should determine a fair amount of pay. Aspects of a job which most concern respondents are probed. A special section explores attitudes toward women's participation in the labor force. Information is sought about respondents' satisfaction with income, job, and standard of living, and of how well the present standard of living matches past expectations. Various personal trust, control, and achievement items are included. The data also contain the traditional series of Economic Behavior Program questions on consumer attitudes and expectations, price changes, and unemployment. Among the personal data reported are marital status, education, age, sex, race, occupation of respondent and head, income, number of children, and party identification.